Security Advisory WSO2-2019-0647¶
Published: November 04, 2019
Severity: Low
CVSS Score: 4.8 (CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N)
AFFECTED PRODUCTS¶
- WSO2 API Manager
OVERVIEW¶
A potential Stored Cross-Site Scripting (XSS) vulnerability has been identified in the implement phase of the API Publisher.
DESCRIPTION¶
A stored XSS attack could be performed in implement phase of creating an API by sending an HTTP POST request with a harmful request parameter for context.
IMPACT¶
By leveraging an XSS attack, an attacker can make the browser get redirected to a malicious website, make changes in the UI of the web page, retrieve information from the browser or harm otherwise. However, since all the session related sensitive cookies are set with httpOnly flag and protected, session hijacking or similar attacks would not be possible.
SOLUTION¶
Apply the following patches based on your product version by following the instructions in the README file. If you have any questions, post them to security@wso2.com.
Download the relevant patches based on the products you use following the matrix below. Patches can also be downloaded from Security Patch Releases.
| Code | Product | Version | Patch |
|---|---|---|---|
| APIM | WSO2 API Manager | 2.6.0 | WSO2-CARBON-PATCH-4.4.0-5185 |
Info
If you are a WSO2 customer with a support subscription, use WSO2 Update Manager (WUM) updates in order to apply the fix. This patch is intended for WSO2 community (free) users.
If you are using newer versions of the products than the ones mentioned in the SOLUTION section, this vulnerability is fixed.
It is highly recommended to migrate older versions of the WSO2 products to the latest released version to receive security fixes.
CREDITS¶
WSO2 thanks, Sathish Kumar Balakrishnan Balakrishnan (Cyber Security Works Pvt Ltd) for responsibly reporting the identified issue and working with us as we addressed them.